Home / 8,171.55-12,257.37-2,328.21

Finding the Fourth Proportional to 8,171.55, 12,257.37 and 2,328.21

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Solution

The fourth proportional to 8,171.55, 12,257.37 and 2,328.21 is: 3,492.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,171.55 : 12,257.37 = 2,328.21 : x
  2. Step 2: Convert to fraction form
    8,171.55/12,257.37 = 2,328.21/x
  3. Step 3: Cross multiply
    8,171.55x = 12,257.37 × 2,328.21
  4. Step 4: Simplify right side
    8,171.55x = 28,537,731.41
  5. Step 5: Solve for x
    x = 28,537,731.41/8,171.55
  6. Step 6: Final answer
    x = 3,492.33

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.